Polished Ruby Programming

What this about?

Polished Ruby Programming will help you get better at designing scalable and robust Ruby programs, so that no matter how big the codebase grows, maintaining it will be a breeze.

This book takes you on a journey through implementation approaches for many common programming situations, the trade-offs inherent in each approach, and why you may choose to use different approaches in different situations.

You'll start by refreshing Ruby fundamentals, such as correctly using core classes, class and method design, variable usage, error handling, and code formatting. Then you'll move on to higher-level programming principles, such as library design, use of metaprogramming and domain-specific languages, and refactoring. Finally, you'll learn principles specific to web application development, such as how to choose a database and web framework, and how to use advanced security features.

By the end of this Ruby programming book, you'll be a well rounded web developer with a deep understanding of Ruby.

While most code examples and principles discussed in the book apply to all Ruby versions, some examples and principles are specific to Ruby 3.0, the latest release at the time of publication.

What you will learn
  • Use Ruby's core classes and design custom classes effectively
  • Explore the principles behind variable usage and method argument choice
  • Implement advanced error handling approaches such as exponential backoff
  • Design extensible libraries and plugin systems in Ruby
  • Use metaprogramming and DSLs to avoid code redundancy
  • Implement different approaches to testing and understand their trade-offs
  • Discover design patterns, refactoring, and optimization with Ruby
  • Explore database design principles and advanced web app security

Author

Jeremy Evans

is a Ruby committer who focuses on fixing bugs in Ruby, as well as improving the implementation of Ruby. He is the maintainer of many popular Ruby libraries, including the fastest web framework (Roda) and fastest database library (Sequel). His libraries are known not just for their performance, but also for their code quality, understandability, documentation, and how quickly any bugs found are fixed. For his contributions to Ruby and the Ruby community, he has received multiple awards, such as receiving the prestigious RubyPrize in 2020 and being chosen as a Ruby Hero in 2015. He has given presentations at over 20 Ruby conferences. In addition to working on Ruby, he is also a committer for the OpenBSD operating system.